Abstract: In order to realize the desired shaping precision of fiber laser online-selective shaping diamond wheel, a fiber laser online shaping diamond wheel system was built by utilizing the computer, charge coupled device(CCD) sensor, PCIe-6361 data acquisition card as the main hardwares and LabVIEW software as the computer development tools. The system can not only realize diamond wheel shaping with laser on line, but also achieve high precision measurement on the surface profile of the grinding wheel and data storage in a short time. Experimental results show that, after the measurement of wheel contour, when the system of fiber laser shaping diamond grinding wheel is set with diamond wheel shaping threshold of 38.23m, power of 35W, repetition frequency of 50kHz, the maximum height of wheel after shaping is under 38m. The system design can meet the shaping requirements of diamond wheel.